Model comparison
Mercury 2 vs Nemotron 4 340b Instruct
Mercury 2 is the stronger model overall, scoring 39.1 to 35.9 on the Noometry Index.
Last verified . 11 shared benchmarks.
NVIDIASummary
- They share 11 benchmarks with published results for both. Mercury 2 scores higher in 6 categories and Nemotron 4 340b Instruct in 1 category; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Mercury 2 leads 53.8 to 42.7.
- Nemotron 4 340b Instruct has downloadable open weights; the other is API-only.
Side by side
| Mercury 2 | Nemotron 4 340b Instruct | |
|---|---|---|
| Provider | Inception | NVIDIA |
| Noometry Index | 39.1 | 35.9 |
| Released | 2026-02-20 | 2024-06-14 |
| Weights | Proprietary | Open |
| Context window | 128K | — |
| Max output | 50K | — |
| Input $ / M tokens | $0.25 | — |
| Output $ / M tokens | $0.75 | — |
| Results tracked | 17 | 17 |
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Category by category
Coding Nemotron 4 340b Instruct leads
Mercury 2: 33.5 (#255), Nemotron 4 340b Instruct: 35.2 (#228)
| Benchmark | Mercury 2 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Coding | 1391 | 1209 |
| LMArena WebDev | 1171 | — |
| SciCode | 38.7% | — |
| WeirdML | 43.2% | — |
| ALE-Bench | 785.58 | — |
Reasoning Too close to call
Mercury 2: 23.8 (#170), Nemotron 4 340b Instruct: 23.4 (#178)
| Benchmark | Mercury 2 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1362 | 1202 |
| CritPt | 0.8% | — |
Math Not comparable
Mercury 2: —, Nemotron 4 340b Instruct: 34.3 (#195)
| Benchmark | Mercury 2 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Math | — | 1216 |
Knowledge Mercury 2 leads
Mercury 2: 36.2 (#172), Nemotron 4 340b Instruct: 32.0 (#216)
| Benchmark | Mercury 2 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Expert | 1358 | 1171 |
| Vectara Hallucination Rate | 12.3% | — |
Multilingual Mercury 2 leads
Mercury 2: 46.6 (#157), Nemotron 4 340b Instruct: 37.9 (#233)
| Benchmark | Mercury 2 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Non-English | 1331 | 1206 |
| LMArena Chinese | 1417 | 1214 |
| LMArena Russian | 1304 | 1219 |
| LMArena French | — | 1197 |
| LMArena German | — | 1192 |
| LMArena Japanese | — | 1128 |
| LMArena Korean | — | 1148 |
| LMArena Spanish | — | 1195 |
Instruction Following Mercury 2 leads
Mercury 2: 70.2 (#165), Nemotron 4 340b Instruct: 63.1 (#232)
| Benchmark | Mercury 2 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Instruction Following | 1329 | 1203 |
Long Context Mercury 2 leads
Mercury 2: 40.5 (#154), Nemotron 4 340b Instruct: 37.1 (#221)
| Benchmark | Mercury 2 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Longer Query | 1330 | 1225 |
Writing & Preference Mercury 2 leads
Mercury 2: 53.8 (#155), Nemotron 4 340b Instruct: 42.7 (#233)
| Benchmark | Mercury 2 | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Text | 1355 | 1225 |
| LMArena Creative Writing | 1289 | 1203 |
| LMArena Multi-Turn | 1358 | 1214 |
Frequently asked questions
Is Mercury 2 better than Nemotron 4 340b Instruct?
Mercury 2 is the stronger model overall, scoring 39.1 to 35.9 on the Noometry Index.
Is Mercury 2 or Nemotron 4 340b Instruct better for coding?
Nemotron 4 340b Instruct scores higher on coding benchmarks: 35.2 versus 33.5 in the Noometry coding category.
How many benchmarks do Mercury 2 and Nemotron 4 340b Instruct share?
11 benchmarks have published results for both models. Mercury 2 has 17 scored results on Noometry and Nemotron 4 340b Instruct has 17.